CVE-2019-11455 Buffer overflow

What is CVE-2019-11455?

CVE-2019-11455 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 22 Apr 2019. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A buffer over-read in Util_urlDecode in util.c in Tildeslash Monit before 5.25.3 allows a remote authenticated attacker to retrieve the contents of adjacent memory via manipulation of GET or POST parameters. The attacker can also cause a denial of service (application outage).

Weakness: CWE-125

Which versions are affected by CVE-2019-11455?

It affects 4 products.

Products include Canonical Ubuntu Linux, Debian Debian Linux, Fedoraproject Fedora, Tildeslash Monit.

How do I fix CVE-2019-11455?

Upgrade to a fixed version.

Is CVE-2019-11455 being exploited?

There is no known exploitation of CVE-2019-11455 in the wild and no public exploit code.

Other vulnerabilities in Canonical Ubuntu Linux

• CVE-2020-11651 SaltStack Salt Authentication Bypass Exploited Critical 9.8
• CVE-2020-7247 OpenSMTPD Remote Code Execution Exploited Critical 9.8
• CVE-2019-16928 Exim Out-of-bounds Write Exploited Critical 9.8
• CVE-2018-6789 Exim Buffer Overflow Exploited Critical 9.8
• CVE-2015-2590 Oracle Java SE and Java SE Embedded Remote Code Execution Exploited Critical 9.8

All Canonical Ubuntu Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as ALPINE-CVE-2019-11455, CVE-2019-1010312, DEBIAN-CVE-2019-11455, GHSA-7vr9-r7gj-5r8q, UBUNTU-CVE-2019-11455.